03.OperatorsExpressionsStatements/14.ModifyBitGivenPosition

//Problem 14.   Modify a Bit at Given Position
//We are given an integer number n, a bit value v (v=0 or 1) and a position p. Write a sequence of operators (a few lines of C# code)
//that modifies n to hold the value v at the position p from the binary representation of n while preserving all other bits in n.

using System;

class ModifyBitGivenPosition
{
    static void Main()
    {
        Console.Write("Please, enter some number:");
        int nNumber = int.Parse(Console.ReadLine());
        Console.Write("Please, enter bit position p to modify:");
        byte position = byte.Parse(Console.ReadLine());
        Console.Write("Please, enter bit value 0 or 1:");
        byte bitValue = byte.Parse(Console.ReadLine());
        Console.WriteLine("INPUT: " + Convert.ToString(nNumber, 2).PadLeft(16, '0'));
        if (bitValue == 0)
        {
            // set bit at position p to 0
            int mask = ~(1 << position);
            int result = nNumber & mask;
            Console.WriteLine("RESULT:" + Convert.ToString(result, 2).PadLeft(16, '0'));
            Console.WriteLine(result);
        }
        else if (bitValue == 1)
        {
            // set bit at position p to 1
            int mask = 1 << position;
            int result = nNumber | mask;
            Console.WriteLine("RESULT:" + Convert.ToString(result, 2).PadLeft(16, '0'));
            Console.WriteLine(result);
        }
        else
        {
            Console.WriteLine("Wrong input! Try Again.");
        }
    }
}